Hi Jacopo, On Tue, Feb 16, 2021 at 6:41 PM Jacopo Mondi <jacopo+renesas@xxxxxxxxxx> wrote: > The OV10640 image sensor reset and powerdown on signals are controlled Drop the "on"? > by the embedded OV490 ISP. The current reset procedure does not respect > the 1 millisecond power-up delay and releases the reset signal before > the powerdown one. > > Fix the OV10640 power up sequence by releasing the powerdown signal, > waiting the mandatory 1 millisecond power up delay and then releasing "powerdown" vs. "power-up" vs. "power up"? > the reset signal. The reset delay is not characterized in the chip > manual if not as "255 XVCLK + initialization". Wait for at least 3 > milliseconds to guarantee the SCCB bus is available. Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds